Not competent witness
The Commissioner or person acting on behalf or under the direction of the Commissioner is not a competent witness in respect of any matter that comes to their knowledge as a result of the performance or exercise of any of the Commissioner’s duties or powers under this Part in any proceeding other than
(a) a prosecution for an offence under section 28;
(b) a prosecution for an offence under section 132 of the Criminal Code (perjury) in respect of a statement made under this Part;
(c) a hearing before the Court under this Part; or
(d) an appeal from a decision of the Court.